>>> on the broadcast tonight, closing the gap, the new polling numbers that show how that debate changed the race, and the new front romney opened up on the president today. >>> outbreak, more people are sick from meningitis tonight, the attempt to find those at risk. >>> and more on the hand sanitizers that are popular everywhere, how could they be a bad thing? we'll tell you what the doctors believe. >>> and making a difference, you see them at the airport, sniffing, doing their job, and wait until you hear what they over came to make it to the pros, nightly news begins now. this is nbc nightly news with brian williams. >>> good evening, if you were among the over 60 million of us who watched the presidential debate, then you know we saw two things that night, really, an energized mitt romney, and la lackluc kt e railroad president obama, there was new polling when they opened up against the president, the numbers show the race trending, tightening, trending towards romney, at least right now, we begin with peter alexander, traveling with the romney campaign. >> reporter: brian, good e